THiE CANADIAN ENTOMOLOGIST 143 



is not denuded and the antennae are generally almost entirely red with base of 3rd 

 joint rather chunky and moderately excised. The pale oblique stripes on the ab- 

 domen, noted in lasiophthalmus and allied species, are not present in cpistates. 

 The species appears to be common throughout Manitoba Saskatchewan, and the 

 Hudson Bay region, rather rare in Ontario, Quebec and New Brunswick and 

 decidedly rare in British Columbia; the only two specimens from this latter re- 

 gion which I should incline to place under this name were captured at Vernon 

 and Cranbrook; both are rather larger than normal and have the antennae more 

 suffused with black than is generally the case. 



Tal;aii;tH nudus, sp. no v. This species has been so generally confused with 

 cpistates that a comparative description, indicating the points of distinction, is all ' 

 that is necessary. The front is distinctly broader and the subcallus is denuded; 

 the palpi are shorter and basally more swollen ; the antennae are blacker apically, 

 the basal portion of the 3rd joint is rather wider and the finger-like dorsal pro- 

 jection of the 2nd joint is much longer. The pale yellow lateral oblique stripes 

 on the abdomen are present and only slightly less distinct than in lasiophthalmus^. . 

 Length 15mm. 



Holotypc. 15, Ottawa ( Mer bleue. June 1st., 1908). in Canadian National 

 Collection. 



Paratypcs. Numerous 5's from New Brunswick (Fredericton, St- Stephen) ; 

 Ontario, (Ottawa, Hastings Co.,); Manitoba, (Aweme); Sask- 

 atchewan and British Columbia. (Mt. Lehman). 

 The species is much commoner and more wide-spread than episfates. 

 TabaKiif- )^0i30iP.eKS?« O. S. The true sonoincusis is a rather small species, con- 

 fined, as far as I know, entirely to the Pacific Coast region. The British Col- 

 umbia records I possess for the species are all from Vancouver Island but it 

 probably will be found in tlie Lower Fraser Valley as well. Apart from its 

 smaller size it may be distinguished from the preceding species by the entirely 

 black antennae with a narrow thirdjoint, scarcely excised at base. There is a 

 decided tendency towards a stump at the base of the anterior branch of the 3rd 

 vein, the cross-vein being generally decidedly tinged with brown. Hine (1904, 

 Ohio Nat. V, 244) has treated several forms under the name sonomensis but 

 his remarks in the first paragraph are applicable to the true species. 

 Tabanws phaeiMtps O. S. The species is very closely allied to the preceding and 

 I have not yet decided to my entire satisfaction whether the two can go definitely 

 separated. Typical phaenops possesses almost blackish palpi in contradistinc- 

 tion to the pale ochreous ones of sonomensis but this character seems variable; 

 Oregon specimens and ones from Laggan, Alta., which agree in other respects, 

 have pale palpi. The lack of the brown spot on the cross-vein seems more 

 characteristic and for the present T am using this feature to separate the two 

 forms. The antennae are similar to those of sonomensis and the reddish area 

 of the abdomen seems variable in its extent. The species is decidedly rare in 

 Canada and more material will be necessary to definitely decide its^ status. 

 Tabaniis riipestrir, sp. nov. $. Palpi moderately long, very little swollen at b.sae, 

 dull orange, at times considerably tinged with smoky ; antennae thin, reddish, the 

 distal half of 3rd joint black, very slight excavation dorsally at base of 3rd 

 joint ; subcallus denuded, shiny black ; callosity shiny black with wedge-shaped 

 black patch above it ; front with yellowish pollen and black ocelligerous tubercle ; 



